ClassID:

139448

F02D19/022 - CPC Classification

Classification description:

Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels; Control of components of the fuel supply system to adjust the fuel pressure, temperature or composition

Recent Application in this class:
#1
20260139635
2026-05-21

CONTROL OF FUEL DELIVERY PRESSURE BASED ON DETERMINED MASS OF REMAINING FUEL FOR A VEHICLE

#2
20260085643
2026-03-26

APPARATUS AND METHOD FOR PRESSURIZING AND SUPPLYING GASEOUS FUEL TO AN INTERNAL COMBUSTION ENGINE

#3
20260078721
2026-03-19

DEVICE FOR DIRECT INJECTION OF A GASEOUS FUEL

#4
20260063090
2026-03-05

APPARATUS AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE WITH MULTIPLE COMBUSTION MODES

#5
20250327427
2025-10-23

SYSTEMS AND METHODS FOR VENTING A PRESSURIZED FLUID USED AS A FUEL IN AN ENGINE

#6
20250283436
2025-09-11

FUEL SUPPLY DEVICE AND ENGINE SYSTEM

#7
20250215837
2025-07-03

APPARATUS AND METHOD FOR PRESSURE REGULATION OF A GASEOUS FLUID

#8
20250215836
2025-07-03

CONTROLLER FOR INTERNAL COMBUSTION ENGINE

#9
20250207544
2025-06-26

A POWERTRAIN SYSTEM FOR A VEHICLE

#10
20250154909
2025-05-15

ELECTRONIC PRESSURE REGULATOR

#11
20250012240
2025-01-09

DEVICE FOR DIRECT INJECTION OF A GASEOUS FUEL

#12
20240369024
2024-11-07

APPARATUS AND METHOD FOR PRESSURIZING AND SUPPLYING GASEOUS FUEL TO AN INTERNAL COMBUSTION ENGINE

#13
20240352899
2024-10-24

FUEL SYSTEM FOR A POWER PLANT

#14
20240018916
2024-01-18

Internal combustion engine

#15
20240018914
2024-01-18

Hydrogen pressure maintaining system of hydrogen fuel engine and control method for the same

#16
20240003324
2024-01-04

Engine control device

#17
20230034824
2023-02-02

Methods and systems for engine cold-start

#18
20230019785
2023-01-19

Fuel injection device for an internal combustion engine, in particular for a hydrogen combustion engine

#19
20230014909
2023-01-19

Method and gas fuel injection unit for operating an internal combustion engine

#20
20220325672
2022-10-13

SYSTEM FOR SUPPLYING HYDROGEN GAS TO ENGINE

#21
20220298745
2022-09-22

Working machine

#22
20220243673
2022-08-04

Compressed gas tank arrangement for a combustion machine

#23
20220228527
2022-07-21

Lube oil controlled ignition engine combustion

#24
20220170411
2022-06-02

Turbo air cooler

#25
20220056857
2022-02-24

Gas engine heat pump and method of operating the same

#26
20220056829
2022-02-24

Gas engine heat pump

#27
20210355865
2021-11-18

Lube oil controlled ignition engine combustion

#28
20210301775
2021-09-30

Device for supplying a gaseous fuel to an engine

#29
20210262423
2021-08-26

Propane fuel system temperature control systems and methods

#30
20210156341
2021-05-27

Pressure stabilizer, a gas engine system and a gas pressure control method

#31
20200325854
2020-10-15

Storage tank for cryogenic liquid gas

#32
20200256713
2020-08-13

SYSTEM FOR SHUTTING-OFF FLUID FLOW AND MEASURING FLUID FLOW RATE

#33
20200232420
2020-07-23

Use of decompressing natural gas to lower the intake air temperature of an internal combustion engine

#34
20200158030
2020-05-21

COMPRESSION-IGNITION ENGINE AND CONTROL METHOD FOR COMPRESSION IGNITION ENGINE

#35
20190359904
2019-11-28

Chemical warfare agents and related compounds as fuel for internal combustion engines

#36
20190308485
2019-10-10

Pressure control valve system

#37
20190293028
2019-09-26

High pressure fuel pump and LPDI system including the same

#38
20190285006
2019-09-19

Pressure regulating mass flow system for multipoint gaseous fuel injection

#39
20190264623
2019-08-29

Liquefied gas fuel feeding system and a method of operating a power plant of internal combustion engines powered with liquefied gas

#40
20190211756
2019-07-11

Fuel pressure monitoring system of vaporizer

#41
20190203667
2019-07-04

Gas treatment system and vessel including the same

#42
20190186440
2019-06-20

Propane fuel system temperature control systems and methods

#43
20190178176
2019-06-13

Gas feed method for a gas engine or dual-fuel engine, and gas supply apparatus for same

#44
20190136787
2019-05-09

Fuel delivery system

#45
20190107074
2019-04-11

Methods and systems for fuel injection control

#46
20190101068
2019-04-04

A METHOD AND A SYSTEM FOR ADAPTING ENGINE CONTROL OF A GAS ENGINE IN A VEHICLE

#47
20190101067
2019-04-04

A METHOD AND A SYSTEM FOR DETERMINING THE SPECIFIC GAS CONSTANT AND THE STOICHIOMETRIC AIR FUEL RATIO OF A FUEL GAS FOR A GAS ENGINE

#48
20190024578
2019-01-24

Lube oil controlled ignition engine combustion

#49
20180355827
2018-12-13

Fuel injection device

#50
20180340487
2018-11-29

Methods and systems for fuel injection control

#51
20180328293
2018-11-15

Combustion system control device

#52
20180320637
2018-11-08

Gas processing system and vessel including the same

#53
20180298848
2018-10-18

Method and systems for gaseous and liquid propane injection

#54
20180223773
2018-08-09

POWER GENERATING ASSEMBLY, VEHICLE COMPRISING A POWER GENERATING ASSEMBLY, AND METHOD FOR ADJUSTING AN INERT GAS PRESSURE

#55
20180171888
2018-06-21

High pressure gas phase injector

#56
20180135538
2018-05-17

Integrated natural gas flow regulation system including fuel temperature homogenization for improved engine performance and reduced emissions

#57
20180052097
2018-02-22

Sensor for spectrometric analysis of a variable-pressure gaseous fuel for automotive vehicle

#58
20180030907
2018-02-01

Natural gas fuel reformer control for lean burn gas engines

#59
20170356410
2017-12-14

Method and apparatus for heating a fuel

#60
20170268464
2017-09-21

ENGINE GENERATING ENERGY THROUGH PHYSICAL AND CHEMICAL ENERGY CONVERSIONS OF A COMPRESSED GASEOUS FUEL

#61
20170241350
2017-08-24

Gaseous fuel pumping system

#62
20170167443
2017-06-15

VEHICLE NATURAL GAS FUEL SUPPLY SYSTEMS

#63
20170159582
2017-06-08

Recirculating system for a fuel supply system for a motor and method for supplying fuel to a motor of a vehicle through such a supply system

#64
20170130657
2017-05-11

Method and system for operating gaseous-fuelled direct injection internal combustion engine

#65
20170122272
2017-05-04

Apparatus and method for charging LPG fuel vehicle

#66
20160369711
2016-12-22

Natural gas leak detection through pressure loss in pneumatic starter and prelube

#67
20160341134
2016-11-24

FUEL DELIVERY SYSTEM

#68
20160215683
2016-07-28

Internal combustion engine

#69
20160123244
2016-05-05

Method and system for supplying liquefied petroleum gas to a direct fuel injected engine

#70
20160040592
2016-02-11

Split cycle engine and method of operation

#71
20160017835
2016-01-21

Method and system for delivering a gaseous fuel into the air intake system of an internal combustion engine

#72
20160003199
2016-01-07

Fuel supply system

#73
20150307075
2015-10-29

Systems and methods for supplying gaseous fuel to an engine

#74
20150300273
2015-10-22

Natural gas quality sensor and method for using the same

#75
20150159570
2015-06-11

Method and system for controlling safety of a bi-fuel vehicle

#76
20150159564
2015-06-11

Fuel system for a vehicle

#77
20140379240
2014-12-25

Method and system for estimating fuel composition

#78
20140360471
2014-12-11

Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas

#79
20140299101
2014-10-09

Method and apparatus for supplying a gaseous fuel to an internal combustion engine

#80
20140290280
2014-10-02

System for supplying liquefied natural gas fuel and method of operating the same

#81
20140250891
2014-09-11

Engine generating energy through physical and chemical energy conversions of a compressed gaseous fuel

#82
20140238327
2014-08-28

Internal combustion engine for natural gas compressor operation

#83
20140230789
2014-08-21

Module for managing mass flow and dampening pressure pulsations in a gaseous fuel supply line

#84
20140224208
2014-08-14

Method for operating at least one precombustion chamber-fired internal combustion engine

#85
20140116649
2014-05-01

Stacked plate heat exchanger for an LPG-fueled vehicle

#86
20140116394
2014-05-01

Fuel supply system and fuel supply method for internal combustion engine

#87
20140116362
2014-05-01

Method for operating a stationary power generating plant

#88
20140102416
2014-04-17

FUEL MANAGEMENT SYSTEM

#89
20140081565
2014-03-20

Gaseous fuel rail depressurization during inactive injector conditions

#90
20140076290
2014-03-20

Thermodynamic pump for cryogenic fueled devices

#91
20140069385
2014-03-13

Fuel system for a multi-fuel engine

#92
20140041633
2014-02-13

Dual fuel engine and evaporated natural gas system

#93
20130340715
2013-12-26

Approach for controlling fuel flow with alternative fuels

#94
20130312408
2013-11-28

Gas-fired engine

#95
20130291834
2013-11-07

Method and control device for operating a gasoline engine

#96
20130247873
2013-09-26

Fuel distribution in multi-fuel tank compressed gas fuel systems

#97
20130238217
2013-09-12

Method and system for estimating fuel composition

#98
20130118458
2013-05-16

Fuel feed system

#99
20130118452
2013-05-16

DME common-rail fuel supply apparatus and method

#100
20130104997
2013-05-02

Method and system for controlling fluid flow from a storage tank through a supply line to an end user

#101
20130013256
2013-01-10

SHUT-OFF VALVE FAULT DIAGNOSIS DEVICE

#102
20130000752
2013-01-03

Shut-off valve fault diagnosis device and fuel supply system

#103
20120317995
2012-12-20

PUMP FOR CONVEYING A CRYOGENIC FLUID

#104
20120312280
2012-12-13

Fuel supply system and high-pressure pump for combustion engine

#105
20120310510
2012-12-06

Control system and control method of gas engine

#106
20120216919
2012-08-30

LNG fuel tank system for at least one gas engine used for ship propulsion

#107
20120199102
2012-08-09

Gas fuel admission system for a gas fired engine

#108
20120144803
2012-06-14

Method of operating a fuel processor intermittently

#109
20120060935
2012-03-15

Fuel tank temperature and pressure management via selective extraction of liquid fuel and fuel vapor

#110
20120060796
2012-03-15

Liquefied petroleum gas (LPG) pump control systems and methods

#111
20120060516
2012-03-15

FUEL GAS SUPPLY SYSTEM AND METHOD OF AN LNG CARRIER

#112
20120055171
2012-03-08

FUEL GAS SUPPLY SYSTEM AND METHOD OF AN LNG CARRIER

#113
20120048242
2012-03-01

Fuel system for a multi-fuel engine

#114
20110314839
2011-12-29

Pressure control of cryogenic liquids

#115
20110303166
2011-12-15

HCDS-ICair-single Single Stage Hydrogen Compression & Delivery System for Internal Combustion Engines Utilizing Air Cooling and Electrical Heating

#116
20110290203
2011-12-01

Approach for controlling fuel flow with alternative fuels

#117
20110259285
2011-10-27

AMMONIA BURNING INTERNAL COMBUSTION ENGINE

#118
20110209691
2011-09-01

Working gas circulation engine

#119
20110186012
2011-08-04

Liquid fuel injection engine

#120
20110180042
2011-07-28

Genset that uses an open loop electronic fuel injection system and operates on gaseous fuels

#121
20110144886
2011-06-16

Dual state liquefied petroleum gas engine assembly

#122
20110139122
2011-06-16

Liquefied petroleum gas engine assembly with flow control

#123
20110100335
2011-05-05

FUEL DELIVERY SYSTEM

#124
20110094593
2011-04-28

Method and apparatus for processing diluted fugitive gases

#125
20110094459
2011-04-28

REGULATING A HYDROCARBON COMBUSTION PROCESS USING A SET OF DATA INDICATIVE OF HYDROCARBON FUEL CONSUMED CORRESPONDING TO A MONITORED ENGINE OPERATING CHARACTERISTIC

#126
20110061612
2011-03-17

SPACE ENGINE INCLUDING THE HAASE CYCLE WITH ENERGY RECOVERY COOLING

#127
20100326087
2010-12-30

Fuel gas purification apparatus, power generation system, and fuel synthesis system

#128
20100307454
2010-12-09

Fuel distribution in multi-fuel tank compressed gas fuel systems

#129
20100276027
2010-11-04

System for supplying a consumer with gaseous fuel and associated method

#130
20100108038
2010-05-06

Fuel Feeding Control Device of Compressed Natural Gas Engine

#131
20100049417
2010-02-25

Dual ECU for aftermarket conversions of vehicles and boats to oxy-hydrogen or hybrid fuels

#132
20100005812
2010-01-14

Thermodynamic pump for cryogenic fueled devices

#133
20090241861
2009-10-01

Engine system

#134
20090239426
2009-09-24

Fuel system for gas driven vessel

#135
20090165738
2009-07-02

Spark-ignited gas engine

#136
20090151698
2009-06-18

System and Method for Providing an Air/Fuel Mixture for an Internal-Combustion Engine

#137
20090133674
2009-05-28

FUEL GAS SUPPLY SYSTEM AND METHOD OF AN LNG CARRIER

#138
20090126704
2009-05-21

Fuel gas supply system and method of an LNG carrier

#139
20090120385
2009-05-14

Method and apparatus of fuelling an internal combustion engine with hydrogen and methane

#140
20090076712
2009-03-19

Device for the control of an internal combustion engine operable with liquid and/or gaseous fuel

#141
20090076709
2009-03-19

Method and device for integrative control of gas engine

#142
20090071438
2009-03-19

Method and device for controlling starting of gas engine

#143
20090065720
2009-03-12

Pressure regulator for gaseous media

#144
20090055080
2009-02-26

Method and apparatus for heating at least one injector of an engine

#145
20090055077
2009-02-26

Operating method and device for a gas-operated internal combustion engine

#146
20090050189
2009-02-26

Motor vehicle having a unit operated by a cryogenically stored fuel

#147
20090037076
2009-02-05

METHOD OF INJECTING FLUID, A METHOD OF AND APPARATUS FOR CONTROLLING INJECTION OF FLUID, AND AN INTERNAL COMBUSTION ENGINE

#148
20080302670
2008-12-11

Hydrogen Generator

#149
20080302111
2008-12-11

Apparatus and method for pumping a cryogenic fluid from a storage vessel and diagnosing cryogenic pump performance

#150
20080276628
2008-11-13

FUEL GAS SUPPLY SYSTEM AND METHOD OF AN LNG CARRIER

#151
20080274021
2008-11-06

Compact fuel processor

#152
20080271707
2008-11-06

Liquefied Gas Fuel Supply Device of Diesel Engine

#153
20080226463
2008-09-18

System And Method For Delivering A Pressurized Gas From A Cryogenic Storage Vessel

#154
20080202590
2008-08-28

High Efficiency Valve Geometry For Pressure Regulator

#155
20080135019
2008-06-12

Electronic pressure reducer or regulator unit for feeding gas, particularly methane or hydrogen, to an internal combustion engine, and gas feeding system including this unit

#156
20080135005
2008-06-12

Integrated gaseous fuel delivery system

#157
20080125955
2008-05-29

Control strategy to better usage of fuel in gaseous engine

#158
20080115744
2008-05-22

HYDROGEN FUEL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

#159
20080110421
2008-05-15

Hydrogen Fuel System for an Internal Combustion Engine

#160
20080110420
2008-05-15

Hydrogen engine system

#161
20080103676
2008-05-01

Direct injection gaseous-fuelled engine and method of controlling fuel injection pressure

#162
20080099002
2008-05-01

Injection strategy to maximize efficiency in gaseous engine

#163
20080047502
2008-02-28

Hybrid Cycle Electrolysis Power System with Hydrogen & Oxygen Energy Storage

#164
20080035123
2008-02-14

Hydro-energy carboration and combustion system yielding power and no hydrocarbon emissions

#165
20080029072
2008-02-07

Method and group for the LPG feeding of an internal combustion engine

#166
20070272548
2007-11-29

Hydrogen Gas Electrolysis and Supply Apparatus and Method

#167
20070246020
2007-10-25

Fuel supply apparatus of engine

#168
20070246018
2007-10-25

Pulsation-dampening fuel trim strategy for air/fuel ratio control of propane-fueled, spark-ignited engines

#169
20070193717
2007-08-23

Heat exchanger for hydrogen-operated fuel supply systems

#170
20070157909
2007-07-12

Gas fuel supply system

#171
20070144591
2007-06-28

Pressure regulator

#172
20070137591
2007-06-21

Engine operated generator

#173
20070044760
2007-03-01

Nitrogen enriched combustion of a natural gas internal combustion engine to reduce NOemissions

#174
20070022733
2007-02-01

Electric power supply equipment

#175
20060236988
2006-10-26

Efficiency Increase in Internal Combustion Engines Powered by Hydrogen

#176
20060236975
2006-10-26

Method for injecting gaseous fuels into an internal combustion engine at high pressures

#177
20060219303
2006-10-05

Pressure regulator

#178
20060201164
2006-09-14

System and method for vaporizing a cryogenically stored fuel

#179
20060196565
2006-09-07

In-tank hydrogen distribution valve

#180
20060168950
2006-08-03

Combination emission abatement assembly and method of operarting the same

#181
20060137332
2006-06-29

Vehicle with a supply unit

#182
20060130796
2006-06-22

Method and apparatus for fuel injection systems

#183
20060065214
2006-03-30

Hydrogen fuel system for an internal combustion engine

#184
20060054145
2006-03-16

Heating apparatus for liquefied gas fuel supply system

#185
20060054144
2006-03-16

Gas fuel feed device

#186
20060027216
2006-02-09

Heating system for liquefied gas fuel supply apparatus and fuel supply appartus for liquefied gas engine

#187
20050252495
2005-11-17

Gas feeding system for an internal combustion engine, having a pressure reducing valve connected to the intake manifold

#188
20050241624
2005-11-03

Internal combustion engine gas feeding system

#189
20050241623
2005-11-03

Gas feeding system for an internal combustion engine, having an improved pressure reducing valve

#190
20050193992
2005-09-08

Fuel pump noise reducing apparatus and method thereof for liquefied petroleum injection vehicle

#191
20050193991
2005-09-08

Fuel pump noise-reduction apparatus in liquefied petroleum injection vehicle

#192
20050193990
2005-09-08

Systems for delivering liquified gas to an engine

#193
20050193989
2005-09-08

Gaseous fuel system for automotive vehicle

#194
20050147513
2005-07-07

Method and apparatus for delivering pressurized gas

#195
20050087176
2005-04-28

Starting method of an LPI engine in partial cool-down state

#196
20050000490
2005-01-06

Fuel feed device of gas engine

#197
14593653
2016-11-15

Hydraulic servo gas regulator for multi-fuel engine